Sound amplifier



FIG. 1 is a front perspective view of a sound amplifier showing my newdesign.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a right side elevational view thereof.

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is a partially enlarged front perspective view of FIG. 1.

The broken line portions of FIGS. 1 and 3-7 are included to showunclaimed subject matter only and form no part of the claimed design.

CLAIM The ornamental design for a sound amplifier, as shown anddescribed.